What i have been doing is replacing the tex_glow tex_glow_A tex_glowB_top tex_glow_B_buttom all with a blank shadow file that is used to eliminate the shadows and focus in a top menu.  After doing that I realized that the wave used in the system_plugin_bg is actually displayed much sooner than I thought and it migrates from whatever opening tex_logo image you have to the xmb wave then the xmb very smoothly!